/* ============================================================
   Big Bulles Parentis — feuille de style partagée
   Direction : "descente dans l'eau" — lumière de surface -> profondeur.
   ============================================================ */

:root{
  /* Palette */
  --deep:#07252F;        /* encre / fond profond */
  --petrol:#0A3A4A;      /* bleu pétrole */
  --teal:#1B6E8C;        /* bleu moyen */
  --aqua:#9FD3E3;        /* clair sur fond sombre */
  --aqua-soft:#CDE8EF;
  --surface:#EAF4F7;     /* fond de section clair */
  --paper:#FFFFFF;
  --coral:#FF6B4A;       /* accent action */
  --coral-deep:#E8512F;
  --ink-soft:#3A5560;    /* texte secondaire sur clair */
  --line:rgba(7,37,47,.12);

  --maxw:1140px;
  --radius:16px;
  --radius-sm:10px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --display:"Bricolage Grotesque",system-ui,sans-serif;
  --body:"Inter",system-ui,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--body);
  color:var(--deep);
  background:var(--paper);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit}

h1,h2,h3{font-family:var(--display);line-height:1.05;margin:0;font-weight:700;letter-spacing:-.02em}
h1{font-size:clamp(2.4rem,6vw,4.4rem)}
h2{font-size:clamp(1.8rem,4vw,2.9rem)}
h3{font-size:1.3rem;letter-spacing:-.01em}
p{margin:0 0 1rem}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(20px,5vw,40px)}
.eyebrow{
  font-family:var(--body);font-weight:600;font-size:.78rem;
  letter-spacing:.18em;text-transform:uppercase;color:var(--teal);
  display:inline-flex;align-items:center;gap:.6em;margin-bottom:1rem;
}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--coral);display:inline-block}

/* ---------- Boutons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;
  font-family:var(--body);font-weight:600;font-size:1rem;
  padding:.85em 1.5em;border-radius:999px;text-decoration:none;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s;
}
.btn--primary{background:var(--coral);color:#fff;box-shadow:0 8px 22px -8px rgba(232,81,47,.6)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px -10px rgba(232,81,47,.7);background:var(--coral-deep)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn--ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn--dark{background:var(--deep);color:#fff}
.btn--dark:hover{transform:translateY(-2px);background:var(--petrol)}
.btn .arr{transition:transform .2s var(--ease)}
.btn:hover .arr{transform:translateX(3px)}

/* ---------- En-tête ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.86);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:.7em;text-decoration:none;font-family:var(--display);font-weight:700;color:var(--deep);font-size:1.15rem;letter-spacing:-.02em}
.brand img{width:40px;height:40px}
.brand span small{display:block;font-family:var(--body);font-weight:500;font-size:.66rem;letter-spacing:.04em;color:var(--ink-soft);text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:2rem;list-style:none;margin:0;padding:0}
.nav-links a{text-decoration:none;font-weight:500;font-size:.96rem;color:var(--deep);position:relative;padding:.2em 0}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:2px;background:var(--coral);transition:width .25s var(--ease)}
.nav-links a:hover::after,.nav-links a.is-active::after{width:100%}
.nav-cta{margin-left:.5rem}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.burger span{width:24px;height:2px;background:var(--deep);transition:.25s}

/* ---------- Jauge de profondeur (signature) ---------- */
.depth-rail{
  position:fixed;left:18px;top:50%;transform:translateY(-50%);
  z-index:40;display:flex;flex-direction:column;align-items:center;gap:0;
  font-family:var(--body);pointer-events:none;
}
.depth-rail .track{position:relative;width:2px;height:260px;background:linear-gradient(var(--aqua),var(--teal))}
.depth-rail .bead{position:absolute;left:50%;top:0;width:11px;height:11px;border-radius:50%;
  background:var(--coral);transform:translate(-50%,-50%);box-shadow:0 0 0 4px rgba(255,107,74,.2);transition:top .15s linear}
.depth-rail .tick{position:absolute;left:50%;transform:translateX(-50%);font-size:.6rem;color:var(--teal);font-weight:600;letter-spacing:.05em}
.depth-rail .t0{top:-18px}.depth-rail .tb{bottom:-18px}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;
  background:linear-gradient(160deg,#0E4A5E 0%,#0A3A4A 45%,#07252F 100%)}
.hero::after{/* rayons de lumière */
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
   linear-gradient(105deg,transparent 38%,rgba(255,255,255,.06) 42%,transparent 46%),
   linear-gradient(100deg,transparent 60%,rgba(255,255,255,.05) 64%,transparent 67%);
}
.hero .wrap{position:relative;z-index:2;padding-top:clamp(54px,9vw,96px);padding-bottom:clamp(54px,9vw,96px)}
.hero h1{max-width:14ch}
.hero .lead{font-size:clamp(1.05rem,2.2vw,1.3rem);color:var(--aqua-soft);max-width:46ch;margin:1.4rem 0 2rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:1rem}
.hero .eyebrow{color:var(--aqua)}
.bubbles{position:absolute;inset:0;z-index:1;pointer-events:none}
.bubbles span{position:absolute;bottom:-30px;border:1.5px solid rgba(173,216,230,.4);border-radius:50%;animation:rise linear infinite}
@keyframes rise{to{transform:translateY(-115vh);opacity:0}}

/* ---------- Sections ---------- */
section{padding:clamp(56px,9vw,104px) 0}
.section--surface{background:var(--surface)}
.section--deep{background:var(--deep);color:#fff}
.section--deep .eyebrow{color:var(--aqua)}
.section--deep h2{color:#fff}
.lead-2{font-size:1.15rem;color:var(--ink-soft);max-width:60ch}
.section--deep .lead-2{color:var(--aqua-soft)}

/* grilles cartes */
.grid{display:grid;gap:1.4rem}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.7rem;transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px -22px rgba(7,37,47,.5)}
.card .ico{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:var(--surface);color:var(--teal);margin-bottom:1rem}
.section--deep .card{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.1)}
.section--deep .card .ico{background:rgba(255,255,255,.08);color:var(--aqua)}
.card h3{margin-bottom:.5rem}
.card p{margin:0;color:var(--ink-soft)}
.section--deep .card p{color:var(--aqua-soft)}

/* deux colonnes média + texte */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.split .media{border-radius:var(--radius);overflow:hidden;box-shadow:0 30px 60px -30px rgba(7,37,47,.55);position:relative}
.split .media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.media-tag{position:absolute;left:14px;bottom:14px;background:rgba(7,37,47,.78);color:#fff;
  font-size:.72rem;padding:.4em .8em;border-radius:999px;backdrop-filter:blur(4px)}

/* liste check */
.checks{list-style:none;padding:0;margin:1.2rem 0 0;display:grid;gap:.7rem}
.checks li{display:flex;gap:.7em;align-items:flex-start}
.checks svg{flex:none;margin-top:.2em;color:var(--coral)}

/* bandeau CTA */
.cta-band{background:linear-gradient(135deg,var(--teal),var(--petrol));color:#fff;border-radius:var(--radius);
  padding:clamp(2rem,5vw,3.4rem);text-align:center;position:relative;overflow:hidden}
.cta-band h2{color:#fff;margin-bottom:.8rem}
.cta-band p{color:var(--aqua-soft);max-width:48ch;margin:0 auto 1.8rem}
.cta-band .btns{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}

/* tableau niveaux */
.levels{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.2rem}
.levels span{background:var(--surface);border:1px solid var(--line);border-radius:999px;
  padding:.45em 1em;font-weight:600;font-size:.9rem;color:var(--teal)}

/* bureau */
.people{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-top:1.6rem}
.person{background:var(--surface);border-radius:var(--radius);padding:1.3rem;text-align:center}
.person .role{font-size:.74rem;text-transform:uppercase;letter-spacing:.12em;color:var(--coral-deep);font-weight:700}
.person .name{font-family:var(--display);font-weight:700;font-size:1.15rem;margin-top:.25rem;color:var(--deep)}

/* info / note */
.note{background:var(--surface);border-left:3px solid var(--teal);border-radius:var(--radius-sm);
  padding:1.1rem 1.3rem;font-size:.95rem;color:var(--ink-soft)}
.note strong{color:var(--deep)}

/* ---------- Pied de page ---------- */
.site-footer{background:var(--deep);color:#fff;padding:clamp(48px,7vw,80px) 0 28px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem}
.site-footer a{color:var(--aqua-soft);text-decoration:none}
.site-footer a:hover{color:#fff}
.foot-brand{display:flex;align-items:center;gap:.7em;margin-bottom:1rem}
.foot-brand img{width:48px;height:48px}
.foot-brand b{font-family:var(--display);font-size:1.2rem}
.foot-col h4{font-size:.78rem;text-transform:uppercase;letter-spacing:.14em;color:var(--aqua);margin:0 0 1rem}
.foot-col p{color:var(--aqua-soft);margin:0 0 .5rem;font-size:.95rem}
.foot-fsgt{display:flex;align-items:center;gap:.8em;margin-top:1.2rem;background:rgba(255,255,255,.05);padding:.7em 1em;border-radius:12px;width:fit-content}
.foot-fsgt img{width:42px;height:auto}
.foot-fsgt small{font-size:.78rem;color:var(--aqua-soft);max-width:22ch;line-height:1.4}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:2.5rem;padding-top:1.4rem;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.85rem;color:var(--aqua-soft)}

/* ---------- Page sobre (en-tête de page intérieure) ---------- */
.page-head{background:linear-gradient(160deg,#0E4A5E,#07252F);color:#fff}
.page-head .wrap{padding-top:clamp(48px,7vw,84px);padding-bottom:clamp(40px,6vw,68px)}
.page-head h1{max-width:18ch}
.page-head .lead{color:var(--aqua-soft);max-width:52ch;margin-top:1.2rem;font-size:1.15rem}
.breadcrumb{font-size:.85rem;color:var(--aqua);margin-bottom:1rem}
.breadcrumb a{color:var(--aqua);text-decoration:none}

/* ---------- Hero avec photo de fond ---------- */
.hero__media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.hero--photo{background:#07252F}
.hero--photo::before{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(160deg,rgba(11,58,74,.74) 0%,rgba(7,37,47,.86) 55%,rgba(7,37,47,.94) 100%)}
.hero--photo::after{opacity:.5}

/* en-tête de page avec photo */
.page-head--photo{position:relative;overflow:hidden;background:#07252F}
.page-head__media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.page-head--photo::before{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(160deg,rgba(11,58,74,.72),rgba(7,37,47,.9))}
.page-head--photo .wrap{position:relative;z-index:2}

/* variantes de média */
.media--portrait img{aspect-ratio:3/4}
figure.media{margin:0}

/* bande photo pleine largeur */
.band{position:relative;height:clamp(220px,38vw,420px);overflow:hidden}
.band img{width:100%;height:100%;object-fit:cover}
.band .band-cap{position:absolute;left:0;bottom:0;right:0;padding:1.2rem clamp(20px,5vw,40px);
  background:linear-gradient(transparent,rgba(7,37,47,.8));color:#fff;font-size:.9rem}

/* cartes de dates */
.dates{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:2rem}
.date-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.4rem 1rem;text-align:center;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.date-card:hover{transform:translateY(-4px);box-shadow:0 16px 36px -20px rgba(7,37,47,.5)}
.date-card .wd{font-size:.72rem;text-transform:uppercase;letter-spacing:.14em;color:var(--coral-deep);font-weight:700}
.date-card .d{font-family:var(--display);font-weight:800;font-size:2.6rem;line-height:1;margin:.25rem 0;color:var(--deep)}
.date-card .m{font-weight:600;color:var(--ink-soft);text-transform:uppercase;font-size:.82rem;letter-spacing:.06em}

/* ligne de faits pratiques */
.facts{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2rem}
.fact{display:flex;align-items:center;gap:.7em;background:var(--paper);border:1px solid var(--line);
  border-radius:999px;padding:.6em 1.1em;font-weight:600;font-size:.95rem}
.fact svg{color:var(--teal);flex:none}
.fact b{color:var(--deep)}
.section--deep .date-card,.section--deep .fact{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12)}
.section--deep .date-card .d,.section--deep .fact b{color:#fff}
.section--deep .fact{color:var(--aqua-soft)}

@media (max-width:760px){
  .dates{grid-template-columns:1fr 1fr}
}

/* formulaire de réservation */
.form{display:grid;gap:1.1rem}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
.form label{display:block;font-weight:600;font-size:.85rem;margin-bottom:.35rem;color:var(--deep)}
.form input,.form select,.form textarea{width:100%;padding:.72em .9em;border:1.5px solid var(--line);
  border-radius:10px;font:inherit;font-size:.95rem;background:#fff;color:var(--deep);transition:border-color .15s,box-shadow .15s}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(27,110,140,.18)}
.form textarea{min-height:84px;resize:vertical}
.form .hint{font-size:.82rem;color:var(--ink-soft);margin:0}
.form button{justify-self:start;margin-top:.2rem}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.7rem;box-shadow:0 20px 50px -30px rgba(7,37,47,.4)}
.form-card h3{margin-bottom:.3rem}
.form-steps{display:flex;gap:.5rem;flex-wrap:wrap;margin:0 0 1.4rem;padding:0;list-style:none}
.form-steps li{display:flex;align-items:center;gap:.45em;font-size:.82rem;font-weight:600;color:var(--ink-soft)}
.form-steps li b{display:grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--coral);color:#fff;font-size:.72rem}
.form-steps li::after{content:"→";margin-left:.4em;color:var(--line)}
.form-steps li:last-child::after{content:""}
@media (max-width:600px){.form .row{grid-template-columns:1fr}}

/* ---------- Réduction de mouvement ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important;transition:none!important}
}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .grid-3{grid-template-columns:1fr 1fr}
  .people{grid-template-columns:1fr 1fr}
  .depth-rail{display:none}
}
@media (max-width:760px){
  .nav-links{position:fixed;inset:72px 0 auto 0;background:#fff;flex-direction:column;
    gap:0;padding:1rem 0;border-bottom:1px solid var(--line);
    transform:translateY(-130%);transition:transform .3s var(--ease);box-shadow:0 20px 40px -20px rgba(7,37,47,.4)}
  .nav-links.open{transform:translateY(0)}
  .nav-links li{width:100%;text-align:center}
  .nav-links a{display:block;padding:.9em 0}
  .nav-cta{margin:.5rem auto 0}
  .burger{display:flex}
  .split{grid-template-columns:1fr}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .people{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}